20194103 has 4 divisors (see below), whose sum is σ = 20379480. Its totient is φ = 20008728.

The previous prime is 20194081. The next prime is 20194123. The reversal of 20194103 is 30149102.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30149102 = 2 ⋅15074551.

It is a cyclic number.

It is not a de Polignac number, because 20194103 - 2⁶ = 20194039 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20194123) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 92525 + ... + 92742.

It is an arithmetic number, because the mean of its divisors is an integer number (5094870).

Almost surely, 2^20194103 is an apocalyptic number.

20194103 is a deficient number, since it is larger than the sum of its proper divisors (185377).

20194103 is a wasteful number, since it uses less digits than its factorization.

20194103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185376.

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 20194103 is about 4493.7849303232. The cubic root of 20194103 is about 272.3170637620.

The spelling of 20194103 in words is "twenty million, one hundred ninety-four thousand, one hundred three".